Oskar's collection

All puzzles featured on this page have been developed, or co-developed,
by puzzle designer extraordinaire Oskar van Deventer of the Netherlands.
Ever wondered what a 4D maze might look like? Or how your alter-ego might
feel if trapped in a parallel-universe maze? Well now you can find out.

Update June 2009: Oskar is now presenting
many of his latest and greatest mechanical inventions on YouTube.